| Author: | Raymond, Percy E. (Percy Edward), 1879-1952 |
| Subject: | Q, Trilobites |
| Format: | Text |
| Date issued: | 2012 |
| Language: | English |
| Publisher: | Project Gutenberg, |
| Rights: | Public domain in the USA. |
| Download link: | The Appendages, Anatomy, and Relationships of Trilobites [electronic resource] / Percy E. Raymond |